﻿/**
 * Copyright (c) 2011-2016, Mobangjack 莫帮杰 (mobangjack@foxmail.com).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace util
{
    class Arr<T>
    {

        public static void Resize(T[] array, int newSize)
        {
            T[] tmp = new T[newSize];
            Array.Copy(array, tmp, array.Length);
            array = tmp;
        }

        public static void Resize(T[] array, int threshold, int newSize)
        {
            if(array.Length < threshold)
            {
                Resize(array, newSize);
            }
        }

        public static void DoubleSizeOnThreshold(T[] array, int threshold)
        {
            if (array.Length <= threshold)
            {
                Resize(array, 2 * array.Length);
            }
        }
    }
}
